Opening on an extended Allo Allo reference. Bold move.
Otherwise, I feel like a third source of Unity's image issues, somewhat related to the other two, is its common enough usage in early access titles. Games like Subnautica, Kerbal Space Program, and Guns of Icarus. Games that spend years being playable while being technically incomplete, and I believe the 'technically incomplete' point can end up forgotten in the background, leaving only the association of Unity being uses for games that, even if generally functional, have weird hang-ups and performance issues.
This applies even to games where players only see the early development, rather than have to deal with it themselves. I remember when Prey of the Gods achieved its funding goals, and in particular revealed they were going to include XBO and PS4 ports regardless because the common architecture and nature of Unity itself made it possible for the team to port the game without additional assistance, and some people's initial response was how poorly the ports ran because of using Unity. Nevermind the devs continually stressing that these were bare minimum ports with no real optimisation whatsoever. There were problems, the game uses Unity, ergo those problems would be gone if they just weren't using Unity.